Method of treating old tires to produce new material.



FREDERICK L. HARLEY, OF FOLSOM, PENNSYLVANIA.

METHOD OF TREATING OLD TIRES TO PRODUCE NEW MATERIAL.

No Drawing.

To all whom it may concern:

Be it known that I, FREDERICK L. HARLEY, a citizen of United States, residing at Fol som, in the county of Delaware and State of Pennsylvania, have invented new and useful Improvements in Methods of Treating Old Tires to Produce New Material, of which the following is a specification.

Theinvention relates to a method of treating old or worn-out tires, to derive therefrom various of the substances used in the original manufacture of the tire, whereby to obtain a new material that may be employed for various purposes.

Among other em comprehends a method for treating old tires, and processing the derived products, whereby there will be produced a material which can be readily ada tedto various purposes, as for instance, gas rets, packings, shoe soles, heels, or other forms of products which necessitate the use of a material embod ing a fabric or body impregnated with ru her or rubber composition, or the like.

More particularly the method involved is to strip the old tire, whether it be a bicycle or automobile tire, to obtain the fabric which ordinarily forms a part of the tire, said fabric being calendered or treated by the action of heat and compressed with suitable form, and subjected to vulcanization, so that the various parts or ingredients will be firmly pressed and held together, and the resultant product is then subjected to further up-building with a cement or rubber or graphited to obtain a stock that will adapt itself to'the urposes mentioned.

Specifically, I ta e for instance, an automobile tire that has become worn and unfit for further use, and by means of a rotary or other suitable cutter I striptherefrom the solid rubber ortion of the ca'rcass of the tire to obtain t e underlying fabric, and

which will be readily understood! is of course impregnated with a certain amount of the rubber that the tire was originally made from. This fabric stripor body is now calendered between heavy rollers to thoroughly compress the rubber remaining therein, causing the fiber and rubber portions to form a unitary flexible roduct, the fiber body being then passed t rough flatpress vulcanizers to thoroughlyh vulcanize' the rubber and fiber together. is will result in a flat sheet of the desired product, which may now be cut up or formed into Specification of Letters Patent.

odiments, the invention.

Patented N ov. 26, 1918.

Application filed January 30, 1918. Serial No. 214,528.

various articles of manufacture, such as pack1ngs,gaskets; and the like.

For instance, in building up a high-pressure packing, sheets of the productobtained as 'above described, are cemented together with raw Para cement and graphited in any well-known manner, and the waste pieces remaining from the sheet after the packing ready and fit to be put to such use as an article of this character is adapted.

I am aware that various methods and processes have been employed heretofore for utilizing certain parts of old and worn tires and the like, but in these instances the pur pose is more particularly to derive there-- from the rubber in the carcass; whereas, I particularly employ the fabric body of the carcass to derive my result, andin so doin provide a simple and effective metho whereby the desired product can be obtained in a cheap manner, and the ingredients of the old and worn-out article of manufacture are therefc memployed to produce a new and special form as for the purposes 1nentioned.

Having described my invention what I claim is:

1. A method of treating tires to obtain a fabric product, consisting in subjecting a tire carcass to the action of a cutter to strip the rubber portion from the tire carcass to expose the fabric body of the carcass, said fabric body having impregnated therein a part of the rubber composition of the tire carcass, subjecting the fabric bod to heavy pressure to thoroughly compress t e remaining rubber of the fabric body into the weave of the fabric, vulcanizing the fabric body" to unify the rubber portion thereof with the weave of the fabric body, and then combining sheets of the said treated fabric body together by cementing the same with raw Para cement to form a built-up stock.

2. A method of treating tires to obtain a fabric product, consisting in stripping from the tire carcass the rubber thereof to expose the fabric body, said fabric body being 2 t V I 1,285,992

pregnated with particles of rubber subjecting the fabric body to heat and heavy pres sure to thoroughly compress the rubber particles and fabric body and vulcanizing the same together, cutting said fabric body into pieces from said resultant-stock, grinding up the Waste particles of said resultant u p stock.

In testimony whereof I affix my signature.

FREDERICK L. HARLEY. 

